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COMP 3322B Modern Technologies on World Wide WebCourse OverviewDr. C Wu Department of Computer Science The University of Hong Kong2nd semester 2018-2019
Internet and the WWWInternet Users in the World (1995-2018)01250250037505000Dec 1995Jul 2000Jul 2002 February, 2004Dec, 2006June, 2008Dec, 2009Dec 2011Jun 2014Jun 2018Millions of UsersSource:
How do you get online?Launch a browser Type in a URL and then press enter
Interneta global system of interconnected computer networks that use the Internet protocol suite to link devices worldwide A network of networksWorld Wide Webabbreviated as WWW or W3; commonly known as the Web it is the largest Internet application it is an information space where documents and other web resources are identified by URIs, interlinked by hypertext links, and can be accessed via the Internet
Outcome 1 [Internet Technologies] : be able to master the key technologies for transferring data and control over the Internet.Internet?How do these machines communicate with each other Internet protocol stack: HTTP, IPApplications: DNS
Static web pages HTML, CSS HTTP request (URL, e.g.Web serverClient (web browser)Aweb serveris a computerprogram that deliverscontent, such as web pages,using the Hypertext TransferProtocol (HTTP) over theInternet.